介绍了利用摇臂钻床对汽车门窗框样件进行实际测量，并运用计算机将测量结果绘制成曲线的方法。
Measurement for automobile door and window sample parts are made on a radial drill and curves are drawn by means of computer with the data measured.
在实际的运用中，主要是比较频响曲线之间的差异，凭经验判断绕组是否变形。
In the practical application, the winding deformation diagnosis mainly depends on the comparison of the response curves, which based on the practical experience.
1994年间美国实际收入之预估：运用恩格尔曲线修正消费者物价指数（CPI）之偏差〉，《政治经济期刊》109期（2001年12月号）：第1288-1310页。
Costa, Dora L. "Estimating Real Income in the United States from 1888 to 1994: Correcting CPI Bias Using Engel Curves. " Journal of Political Economy 109 (December 2001): 1288-1310.
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